Federal Data Hub › IRS Migration Flows · JSON
County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: +10 tax returns · +49 people · +$12,925,000 AGI
| County | Returns | AGI |
|---|---|---|
| King County, WA | 117 | $21,528,000 |
| Whatcom County, WA | 46 | $4,316,000 |
| Snohomish County, WA | 25 | $1,679,000 |
| Skagit County, WA | 20 | $2,420,000 |
| County | Returns | AGI |
|---|---|---|
| King County, WA | 70 | $9,890,000 |
| Whatcom County, WA | 48 | $2,511,000 |
| Skagit County, WA | 41 | $3,369,000 |
| Snohomish County, WA | 29 | $2,348,000 |
IRS migration data tracks where tax filers lived in consecutive years. A "return" is roughly a household; "AGI" is the adjusted gross income that moved with them. Net migration = inflow − outflow. Small county-pair flows are suppressed by the IRS for privacy and shown blank.
Source: IRS SOI Migration Data. License: CC0 1.0.